International journal of radiation oncology, biology, physics · 2001
Interferon-gamma in 5 patients with cutaneous radiation syndrome after radiation therapy.
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Gottlöber P, Steinert M, Bähren W, Weber L, Gerngross H, Peter R U
Аннотация
BACKGROUND: Irradiation can cause acute inflammatory responses as well as chronic fibrotic alterations of the skin. Cutaneous radiation fibrosis evokes a complex of therapeutic problems. However, therapeutic options, apart from surgical approaches, are limited.
PATIENTS AND METHODS: Five female patients suffering from severe cutaneous fibrosis were treated with interferon-gamma on a low-dose regimen, 3 x 100 microg/week subcutaneously for 6 months, then once per week for another 6 months. In 4 patients, skin thickness was measured with high-frequency (20 MHz) ultrasound in a clinically well-defined target skin lesion. In 1 patient, nuclear magnetic resonance imaging was performed to quantify the extent of cutaneous radiation fibrosis and to monitor the therapeutic outcome.
RESULTS: All patients suffered from radiation-induced cutaneous fibrosis. Additionally, in 1 patient, a fistula, as assessed by lymph vessel scintigraphy, and in another patient a radiation ulcer was diagnosed. In all patients, reduction of radiation-induced fibrosis could be documented. Both fistula and radiation ulcer regressed completely under interferon-gamma therapy.
CONCLUSION: Low-dose interferon-gamma therapy is a new and effective treatment modality for cutaneous radiation fibrosis caused by radiation therapy. The positive impact of interferon-gamma on our patients warrants randomized double-blind trials on therapy of radiation fibrosis.
PATIENTS AND METHODS: Five female patients suffering from severe cutaneous fibrosis were treated with interferon-gamma on a low-dose regimen, 3 x 100 microg/week subcutaneously for 6 months, then once per week for another 6 months. In 4 patients, skin thickness was measured with high-frequency (20 MHz) ultrasound in a clinically well-defined target skin lesion. In 1 patient, nuclear magnetic resonance imaging was performed to quantify the extent of cutaneous radiation fibrosis and to monitor the therapeutic outcome.
RESULTS: All patients suffered from radiation-induced cutaneous fibrosis. Additionally, in 1 patient, a fistula, as assessed by lymph vessel scintigraphy, and in another patient a radiation ulcer was diagnosed. In all patients, reduction of radiation-induced fibrosis could be documented. Both fistula and radiation ulcer regressed completely under interferon-gamma therapy.
CONCLUSION: Low-dose interferon-gamma therapy is a new and effective treatment modality for cutaneous radiation fibrosis caused by radiation therapy. The positive impact of interferon-gamma on our patients warrants randomized double-blind trials on therapy of radiation fibrosis.